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                    <h3>（苏理家教）《测定空气中氧气的含量》</h3>
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                    <h3>（苏理家教）《 高锰酸钾分解制氧气》 </h3>
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                    <h3>（苏理家教）《氯酸钾分解制氧气》</h3>
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                    <h3>（苏理家教）《过氧化氢分解制氧气》 </h3>
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                    <h3>（苏理家教）《 过滤》 </h3>
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                    <h3>（苏理家教）《 氢气的燃烧》 </h3>
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                    <h3>（苏理家教）《电解水实验》 </h3>
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                    <h3>《铁钉和硫酸铜反应前后质量的测定》</h3>
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                    <h3>《碳酸钠和盐酸反应前后质量的测定》 </h3>
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                    <h3>（苏理家教）《活性炭的吸附作用》</h3>
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                    <h3>《铁钉和硫酸铜反应前后质量的测定》</h3>
                    <p class="pin">站长微信号： sulijiajiao </p>


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                    <h3>（苏理家教） 《木炭还原氧化铜》 </h3>
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                    <h3>（苏理家教）《二氧化碳的实验室制取》 </h3>
                    <p class="pin">站长微信号： sulijiajiao </p>
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                    <h3>（苏理家教） 《二氧化碳水溶液显酸性》</h3>
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                    <h3>（苏理家教）《倾倒二氧化碳》 </h3>
                    <p class="pin">站长微信号： sulijiajiao </p>


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